Testing
The suite is layered by dependency and purpose:
# Fast shared-package tests
uv run pytest tests/unit
# Full CPU suite, including integration and parity tests
uv run pytest
# Required ROOT-GNN parity gate (must fail if DGL is unavailable)
GNN4COLLIDERS_REQUIRE_ROOT_GNN=1 uv run pytest
# Optional layers
uv run pytest -m distributed -v
uv run pytest -m onnx -v
uv run pytest -m gpu -v
GNN4COLLIDERS_ROOT_FIXTURE=/path/to/reduced.root uv run pytest -m real_data -v
On Apple Silicon macOS, uv sync --dev --extra root-gnn supports CPU
ROOT-GNN unit and integration testing. CUDA and the required ROOT-GNN parity
gate are validated on Linux x86_64 with the root-gnn extra installed.
Hugging Face parity automation
The scientific parity gate runs natively on the Hugging Face Hub. A repository
webhook watches PR commit refs (refs/pr/<number>) and triggers a Hugging Face
Job. The Job downloads the exact commit SHA from the webhook, installs the
root-gnn extra, and runs the strict parity suite:
GNN4COLLIDERS_REQUIRE_ROOT_GNN=1 uv run pytest tests/parity -v
The Job prints a versioned JSON report containing the commit, deterministic
parity-fixture digest, tolerances, and pytest summary, then comments the compact
result on the PR. The implementation is in validation/hf_parity_job.py;
webhook and Job registration are deployment configuration and must provide an
HF_TOKEN secret. The registration helper is
validation/register_hf_parity_webhook.py; it takes an already-created Job ID
and a webhook secret. Discussion-only events are ignored because they do not
identify a commit to test.
The Job image must provide uv and the project CI extra. A source Job command
can be run with:
uv run --extra ci python -m validation.hf_parity_job
Hugging Face parity automation
The scientific parity gate runs natively on the Hugging Face Hub. A repository
webhook watches PR commit refs (refs/pr/<number>) and triggers a Hugging Face
Job. The Job downloads the exact commit SHA from the webhook, installs the
root-gnn extra, and runs the strict parity suite:
GNN4COLLIDERS_REQUIRE_ROOT_GNN=1 uv run pytest tests/parity -v
The Job prints a versioned JSON report containing the commit, deterministic
parity-fixture digest, tolerances, and pytest summary, then comments the compact
result on the PR. The implementation is in validation/hf_parity_job.py;
webhook and Job registration are deployment configuration and must provide an
HF_TOKEN secret. Discussion-only events are ignored because they do not
identify a commit to test.
Unit tests use deterministic, small tensors and generated ROOT files. DGL,
ONNX, CUDA, distributed execution, and reduced real-data fixtures remain
optional layers. Tests should assert public contracts and scientific
invariants rather than private call sequences. New regression tests should
use tmp_path, explicit seeds, and justified numerical tolerances.
Release validation additionally builds a wheel and runs the CLI help command in a clean environment; it is not part of the ordinary pytest suite.